Why Not TCP/IP?

Nearly impossible to steer data in hardware

What’s wrong with software data steering?

• Data copies

  • Buffer alignment
  • Data traverses the system bus twice!

• High host overhead:

  • 10 Mbit/s @ 1500 byte packets, 670 packets/s
  • 1 Gbit/s @ 1500 byte packets, 67000 packets/s
  • 10 Gbit/s @ 64K byte packets, 12000 packets/s

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